Flora of North America species comparison

2(–3), spreading to ascending, on basal portion of stem, abruptly reduced to bracts distally;

blade lanceolate to elliptic, 12–23 × 1–3.2 cm.

2, in subequal basal pair, spreading-ascending or lying on ground;

bracts 0(–1, very rarely);

blade orbiculate, broadly elliptic, or obovate, 5–17 × 4–13 cm.

rather lax.

lax.

resupinate, showy, white;

lateral sepals reflexed;

petals oblong, margins entire;

lip porrect, spatulate to lance-spatulate, without basal thickening, 10–15 × 2.5–4 mm, margins slightly lacerate to subentire;

spur slenderly cylindric, scarcely clavate, 35–60 mm;

rostellum lobes directed forward, spreading, angular;

rostellum lobes slenderly curving forward, slightly spreading, angular-elongate, long;

pollinaria with stalks curved forward;

pollinia remaining enclosed in anther sacs;

viscidia orbiculate;

ovary slender, ca.16–22 mm.

resupinate, not showy;

calyx green;

corolla commonly yellowish green;

lateral sepals reflexed;

petals narrowly lanceolate-falcate, margins entire;

lip projecting to porrect, lanceolate to narrowly lance-rhombic, without basal thickening, 8–23 × 1–6 mm, margins entire;

spur slenderly conic, 11–27 mm;

rostellum lobes very wide-spreading, angular;

pollinaria nearly straight;

pollinia remaining enclosed in anther sacs;

viscidia suborbiculate;

ovary slender to rather stout, mostly 8–20 mm.

= 42.